Technology is a comprehensive and powerful work, you must have glue, thimble, parting surface design and processing, process distribution, product appearance requirements and other common product defects to know how to do. First of all, when you receive mold design products, the first thing to consider is the location and mode of injection. Glue is also affected by the number of holes and the appearance of the product. One is available, usually in large or strange shapes; the best way to make one of these two materials is to make side glue or diving glue. A quarter of a second, a quarter of a half, adds up, but consider the length of the runner, which not only saves material, but also smoothes the glue; one sixth of an eighth, one sixteenth of an eighth, is a quarter of evolution. In design, the upper runner is 25% larger than the lower runner. In addition, if the product is part of the cosmetics, the side adhesive can not be used for a long time, which will damage the appearance. At this time, more points entered the practice of glue and diving. But be careful when you dive on the thimble. Secondly, fractal surface design. The first thing to do when making parting surfaces is to check reverse buckles. When making parting surface, we must consider the structure, strength and feasibility of the structure, whether the parting surface is good or not, and the processing capacity of our factory. Try to use smooth parting surfaces and use fewer parting surfaces. Third, after you have identified all of the above, you can determine the size of the mold core. At this point, the necessary view of the product diagram will be generated. It must be 1:1. Then the copy image is multiplied by the shrinkage of the product.